饮食多样化会削弱儿童的习惯化能力。
Dietary variety impairs habituation in children.
作者信息
Temple Jennifer L, Giacomelli April M, Roemmich James N, Epstein Leonard H
机构信息
Department of Pediatrics, Division of Behavioral Medicine, University of Buffalo, USA.
出版信息
Health Psychol. 2008 Jan;27(1S):S10-9. doi: 10.1037/0278-6133.27.1.S10.
OBJECTIVE
The purpose of these studies was to test the hypothesis that dietary variety decreases the rate of habituation and increases energy intake in children.
DESIGN
In Experiment 1, salivation in response to the same or a variety of food cues was measured followed by consumption of the study food(s). In Experiment 2, children responded in a computer task to earn points for the same or a variety of low or high energy density foods, which were then consumed.
MAIN OUTCOME MEASURES
Salivation, number of responses, and energy intake were measured.
RESULTS
Participants in the same groups habituated faster than those in the variety groups (p = .05), and in Experiment 2, the effect of variety was independent of energy density. Participants in the variety groups also consumed more energy than those in the same groups in both experiments (p = .05).
CONCLUSIONS
Dietary variety disrupted habituation and increased energy intake in children. In addition, the response to dietary variety was independent of energy density, suggesting that increasing variety of low energy density foods may increase consumption.
目的
这些研究的目的是检验以下假设，即饮食多样化可降低儿童的习惯化速率并增加能量摄入。
设计
在实验1中，测量对相同或多种食物线索的唾液分泌，然后让受试者食用研究食物。在实验2中，儿童通过电脑任务对相同或多种低能量或高能量密度食物做出反应以赚取积分，之后食用这些食物。
主要观察指标
测量唾液分泌、反应次数和能量摄入。
结果
相同组的参与者比多样化组的参与者习惯化速度更快（p = 0.05），并且在实验2中，多样化的影响与能量密度无关。在两个实验中，多样化组的参与者也比相同组的参与者消耗了更多能量（p = 0.05）。
结论
饮食多样化会破坏儿童的习惯化并增加能量摄入。此外，对饮食多样化的反应与能量密度无关，这表明增加低能量密度食物的种类可能会增加摄入量。
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